S.H.I.E.L.D. #4 Written by Mark Waid Art by Chris Sprouse Published by Marvel Comics Release Date: April 8, 2015 • For years, SHIELD’s most secret agent has been Sue Richards, the Invisible Woman! None of the other Fantastic Four is aware of her connection to the world’s premier spy agency, but it’s time they learned … Continue reading Comics: S.H.I.E.L.D. #4 Preview